In the second level there's a part where the sewer tunnel is just blocked by some invisible wall, even though it's clearly the only way to progress cus the one other door is locked. I had to noclip through it.

A final level from the author of the excellent Mages' Skulls and Relic Hunt (as well as the simpler Castle Keep) that was originally released in 2014. Make your way through a rocky mountain pass, traverse the old sewers half-turned into an underground base and reach the water processing plant to sabotage it. As expected from this author, brushwork, texturing and lighting is top-notch, professional-grade work. Still, this 40-minute adventure sadly doesn't feel as exciting as his previous work, mostly because of the sparseness of combat and the somewhat confusing progression (especially in the final part). Nevertheless, a worthy release on its own.